The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8562318 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 22, 2013

Filed:

Aug. 09, 2010
Applicants:

Kristjan Gottfried, Calgary, CA;

Alejandro Juan, Calgary, CA;

Curtis Patterson, Calgary, CA;

Inventors:

Kristjan Gottfried, Calgary, CA;

Alejandro Juan, Calgary, CA;

Curtis Patterson, Calgary, CA;

Assignee:

Exponential Technologies, Inc., Calgary, Alberta, CA;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01C 1/08 (2006.01); F01C 1/24 (2006.01); F01C 21/00 (2006.01); F03C 2/00 (2006.01); F04C 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

This disclosure relates to a new multiphase pump with low recirculated volume. This device discloses novel inlet/outlet porting. One of the disclosed improvements is to port the inlet and outlet through the back of the rotors. In the model shown there is only one lobe on the first rotor, and two lobes on the second rotor. The double lobe rotor has the ports provided thru the back, in the lowest point on the buckets between the lobes. If there were more lobes on the two rotors, then the ports would normally be provided in the rotor with the higher number of lobes, preferably in the lowest point on each bucket. The single lobe rotor shown has voids formed in the outer circumference in order to balance the rotor—however, any rotor with more than one lobe may be naturally balanced and these holes may be unnecessary.


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Gottfried, Kristjan. (2013). Multiphase pump with high compression ratio (U.S. Patent No. 8562318). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8562318

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